Smartphone, where am I? Mobile mapping jumps 39 percent

Some 48 million people used their cell phones to map their location, a 39 percent jump from last year, comScore said.

With the increasing number of smartphones, twice as many people as last year also used mapping apps to help them navigate.

Nearly all of them — close to 89 percent — accessed mobile maps from their car or another vehicle. A smaller percentage — 16.9 percent — used them while walking, running or biking and 13.6 percent while on public transit.

Most of them — 64 percent of mobile maps users — also depended on turn-by-turn instructions.

Meanwhile, planning ahead by mapping out directions via the Internet on a work or home computer was down 2 percent.